Which of the following describes the embryonic period? Group of answer choices The period during which the zygote moves down to the uterus and begins to implant in the lining The period during which the umbilical cord develops The period during which the major organs and structures of the organism first develop The period during which tremendous growth occurs and the organs continue to develop and become functional

The period during which the major organs and structures of the organism first develop.

Explanation:

Germinal stage:

Germinal stage term is used for first two weeks of gestation after conception.

Embryonic period:

Embryonic period is considered from third week to the eighth week after conception.

Fetal period:

From ninth week until birth stage is known as fetal period.

Now, the embryonic period of gestation starts after germinal stage and during this phase the major organs and structures are formed within the growing mammal.

Explanation:

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

explanation:

mark brainliest and have a great day!

you know they are heterozygous for a trait because they have it as jj or jj.